Advisory severityHigh8.1Red Hat Linux

High [CVE-2026-50556] @angular/platform-server: domino: Angular Platform Server: Cross-Site Scripting via unescaped `</noscript>` tags in dynamic content

This high-severity Red Hat Linux advisory covers CVE-2026-50556.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-50556 Source published Jun 22, 2026Source updated Jun 22, 2026

VulniPulse record published Jul 6, 2026Record updated Jul 13, 2026

CVE-2026-50556

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.

Prior to 22.0.0-rc.2, 21.2.16, 20.3.24, and 19.2.25, a Cross-Site Scripting (XSS) vulnerability exists in @angular/platform-server's DOM emulation dependency (domino) when serializing the content of in the bound dynamic text was never escaped under any circumstances. The unescaped closing tag was serialized directly into the output HTML (e.g. ).

When parsed by a browser, it closes the ` tags within dynamic text content. This allows for the execution of arbitrary code in the user's browser context, potentially leading to information disclosure or other malicious activities.

This flaw has an Important impact as @angular/platform-server's DOM emulation dependency (domino) in Red Hat products does not properly escape closing noscript tags during server-s…

Affected versions

< 22.0.0-rc
< 21.2.16
< 20.3.24
< 19.2.25

Official advisory · high-confidence parse· fetched 21 days ago·verify at source

Fixed versions

22.0.0
21.2.16
20.3.24
19.2.25

Official advisory · high-confidence parse· fetched 21 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Official advisory · high-confidence parse· fetched 21 days ago·verify at source

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